This document discusses cloud computing and the global cloud market. It defines cloud computing as a technology that provides centralized data storage and access to applications over the internet. The global cloud market is rapidly growing and is projected to reach $270 billion by 2020. Major players in the cloud market include Amazon, Google, IBM, and Microsoft. The document also examines factors driving cloud adoption, various cloud services models (IaaS, PaaS, SaaS), security and privacy concerns, and opportunities for growth in different geographic regions around the world.